SamuelChien821/devopsbench-100

1INSERT INTO "alert_firings" VALUES(701,601,'gw-latency-p99',416,0,NULL,5103);2INSERT INTO "alert_firings" VALUES(702,601,'gw-latency-p99',417,0,NULL,5103);3INSERT INTO "alert_firings" VALUES(703,602,'gw-error-rate',416,0,603,NULL);4INSERT INTO "alert_firings" VALUES(704,603,'cluster-latency',416,0,NULL,5103);5INSERT INTO "alert_firings" VALUES(705,604,'edge-cache-hit',416,1,NULL,NULL);6INSERT INTO "alert_firings" VALUES(706,604,'edge-cache-hit',417,1,NULL,NULL);7INSERT INTO "alert_rules" VALUES(601,'GatewayHighLatency','gateway_service','histogram_quantile(0.99, gateway_latency) > 250','critical','service','EP-Platform');8INSERT INTO "alert_rules" VALUES(602,'GatewayErrorRate','gateway_service','rate(gateway_errors[5m]) > 0.01','high','service','EP-Platform');9INSERT INTO "alert_rules" VALUES(603,'ClusterWideLatency','','avg(latency) by (cluster) > 400','critical','cluster','EP-Platform');10INSERT INTO "alert_rules" VALUES(604,'EdgeCacheHitRate','edge_cache_service','cache_hit_ratio{tier="gateway-edge"} < 0.8','medium','service','EP-Platform');11INSERT INTO "alert_rules" VALUES(605,'LegacyCheckoutQueueDepth','checkout_legacy_worker','queue_depth > 1000','high','service','EP-Commerce');12INSERT INTO "alert_silences" VALUES(801,'alertname="EdgeCacheHitRate"','Sam Whitfield','muted during the CDN migration, never lifted',402);13INSERT INTO "alerts" VALUES(9601,'payments','error_rate_pct','high','firing','payments error_rate_pct 4.2 exceeds SLO 1.0');14INSERT INTO "alerts" VALUES(9602,'search','latency_p99_ms','medium','firing','search latency_p99_ms 850.0 exceeds SLO 300.0');15INSERT INTO "alerts" VALUES(9603,'checkout','error_rate_pct','high','firing','checkout error_rate_pct 5.5 exceeds SLO 1.0');16INSERT INTO "alerts" VALUES(9604,'api-gateway','latency_p99_ms','critical','firing','api-gateway latency_p99_ms 1030.0 exceeds SLO 250.0');17INSERT INTO "alerts" VALUES(9605,'catalog','latency_p99_ms','medium','firing','catalog latency_p99_ms 645.0 exceeds SLO 300.0');18INSERT INTO "alerts" VALUES(9606,'inventory','error_rate_pct','high','firing','inventory error_rate_pct 4.7 exceeds SLO 1.0');19INSERT INTO "alerts" VALUES(9607,'media-service','latency_p99_ms','medium','firing','media-service latency_p99_ms 800.0 exceeds SLO 400.0');20INSERT INTO "alerts" VALUES(9608,'notifications','error_rate_pct','medium','firing','notifications error_rate_pct 3.6 exceeds SLO 1.5');21INSERT INTO "alerts" VALUES(9609,'analytics-worker','error_rate_pct','medium','firing','analytics-worker error_rate_pct 6.0 exceeds SLO 2.0');22INSERT INTO "alerts" VALUES(9610,'checkout','latency_p99_ms','high','firing','checkout latency_p99_ms 530.0 exceeds SLO 400.0');23INSERT INTO "approval_policy" VALUES(501,'delete_customer_data','data-protection-officer','irreversible and subject to retention law; no rollback exists');24INSERT INTO "approval_policy" VALUES(502,'retire_endpoint_with_live_traffic','service-owner','drops in-flight customer requests; cannot be undone once clients fail');25INSERT INTO "approval_policy" VALUES(503,'rotate_production_credential','security-lead','invalidates every existing session; a mistake locks out production');26INSERT INTO "approval_policy" VALUES(504,'force_promote_unhealthy_canary','incident-commander','knowingly ships a regression to all users');27INSERT INTO "approval_policy" VALUES(505,'drop_database_column','service-owner','forward-only migration; the data cannot be recovered after the drop');28INSERT INTO "audit_events" VALUES(1,'deploy_service','storefront-web','{"environment": "staging", "version": "v3.2.4", "canary_percent": 100, "applied": true, "new_alarms": []}');29INSERT INTO "audit_events" VALUES(2,'deploy_service','storefront-web','{"environment": "production", "version": "v3.2.4", "canary_percent": 100, "applied": true, "new_alarms": []}');30INSERT INTO "audit_events" VALUES(3,'deploy_service','api-gateway','{"environment": "staging", "version": "v5.0.9", "canary_percent": 100, "applied": true, "new_alarms": []}');31INSERT INTO "audit_events" VALUES(4,'deploy_service','api-gateway','{"environment": "production", "version": "v5.0.9", "canary_percent": 100, "applied": true, "new_alarms": []}');32INSERT INTO "audit_events" VALUES(5,'deploy_service','catalog','{"environment": "staging", "version": "v1.9.2", "canary_percent": 100, "applied": true, "new_alarms": []}');33INSERT INTO "audit_events" VALUES(6,'deploy_service','catalog','{"environment": "production", "version": "v1.9.2", "canary_percent": 100, "applied": true, "new_alarms": []}');34INSERT INTO "audit_events" VALUES(7,'deploy_service','checkout','{"environment": "staging", "version": "v2.6.3", "canary_percent": 100, "applied": true, "new_alarms": []}');35INSERT INTO "audit_events" VALUES(8,'deploy_service','checkout','{"environment": "production", "version": "v2.6.3", "canary_percent": 100, "applied": true, "new_alarms": []}');36INSERT INTO "audit_events" VALUES(9,'deploy_service','payments','{"environment": "staging", "version": "v2.7.0", "canary_percent": 100, "applied": true, "new_alarms": []}');37INSERT INTO "audit_events" VALUES(10,'deploy_service','payments','{"environment": "production", "version": "v2.7.0", "canary_percent": 100, "applied": true, "new_alarms": []}');38INSERT INTO "audit_events" VALUES(11,'deploy_service','notifications','{"environment": "staging", "version": "v1.4.8", "canary_percent": 100, "applied": true, "new_alarms": []}');39INSERT INTO "audit_events" VALUES(12,'deploy_service','notifications','{"environment": "production", "version": "v1.4.8", "canary_percent": 100, "applied": true, "new_alarms": []}');40INSERT INTO "audit_events" VALUES(13,'deploy_service','search','{"environment": "staging", "version": "v3.0.5", "canary_percent": 100, "applied": true, "new_alarms": []}');41INSERT INTO "audit_events" VALUES(14,'deploy_service','search','{"environment": "production", "version": "v3.0.5", "canary_percent": 100, "applied": true, "new_alarms": []}');42INSERT INTO "audit_events" VALUES(15,'deploy_service','api-gateway','{"environment": "staging", "version": "v5.1.0", "canary_percent": 100, "applied": true, "new_alarms": []}');43INSERT INTO "audit_events" VALUES(16,'deploy_service','api-gateway','{"environment": "production", "version": "v5.1.0", "canary_percent": 25, "applied": false, "new_alarms": []}');44INSERT INTO "audit_events" VALUES(17,'promote_canary','api-gateway','{"environment": "production", "version": "v5.1.0", "deployment_id": 9266, "new_alarms": []}');45INSERT INTO "audit_events" VALUES(18,'deploy_service','inventory','{"environment": "staging", "version": "v4.3.1", "canary_percent": 100, "applied": true, "new_alarms": []}');46INSERT INTO "audit_events" VALUES(19,'deploy_service','inventory','{"environment": "production", "version": "v4.3.1", "canary_percent": 100, "applied": true, "new_alarms": []}');47INSERT INTO "audit_events" VALUES(20,'deploy_service','media-service','{"environment": "staging", "version": "v0.9.4", "canary_percent": 100, "applied": true, "new_alarms": []}');48INSERT INTO "audit_events" VALUES(21,'deploy_service','media-service','{"environment": "production", "version": "v0.9.4", "canary_percent": 100, "applied": true, "new_alarms": []}');49INSERT INTO "audit_events" VALUES(22,'deploy_service','analytics-worker','{"environment": "staging", "version": "v2.1.7", "canary_percent": 100, "applied": true, "new_alarms": []}');50INSERT INTO "audit_events" VALUES(23,'deploy_service','analytics-worker','{"environment": "production", "version": "v2.1.7", "canary_percent": 100, "applied": true, "new_alarms": []}');51INSERT INTO "channels" VALUES('#incidents','Incident coordination and status updates.');52INSERT INTO "channels" VALUES('#security','Security advisories and audit notes.');53INSERT INTO "channels" VALUES('#eng','General engineering.');54INSERT INTO "channels" VALUES('#deploys','Deployment announcements.');55INSERT INTO "ci_runs" VALUES(1,'api-gateway',9201,'passed','all checks passed');56INSERT INTO "ci_runs" VALUES(2,'checkout',NULL,'failed','intermittent failure: test_checkout_idempotency (rerun may pass)');57INSERT INTO "ci_runs" VALUES(3,'checkout',NULL,'passed','all checks passed');58INSERT INTO "ci_runs" VALUES(4,'payments',NULL,'passed','all checks passed');59INSERT INTO "ci_runs" VALUES(5,'catalog',NULL,'failed','intermittent failure: test_price_rounding (rerun may pass)');60INSERT INTO "ci_runs" VALUES(6,'catalog',NULL,'passed','all checks passed');61INSERT INTO "ci_runs" VALUES(7,'inventory',NULL,'passed','all checks passed');62INSERT INTO "ci_runs" VALUES(8,'inventory',NULL,'failed','intermittent failure: test_reservation_race (rerun may pass)');63INSERT INTO "ci_runs" VALUES(9,'search',NULL,'passed','all checks passed');64INSERT INTO "ci_runs" VALUES(10,'search',NULL,'failed','intermittent failure: test_index_refresh (rerun may pass)');65INSERT INTO "ci_runs" VALUES(11,'analytics-worker',NULL,'passed','all checks passed');66INSERT INTO "ci_runs" VALUES(12,'analytics-worker',NULL,'failed','intermittent failure: test_rollup_window (rerun may pass)');67INSERT INTO "ci_stages" VALUES(1,1,'build','passed','ok');68INSERT INTO "ci_stages" VALUES(2,1,'unit','passed','ok');69INSERT INTO "ci_stages" VALUES(3,1,'integration','passed','ok');70INSERT INTO "ci_stages" VALUES(4,1,'regression','passed','ok');71INSERT INTO "ci_stages" VALUES(5,2,'build','passed','ok');72INSERT INTO "ci_stages" VALUES(6,2,'unit','passed','ok');73INSERT INTO "ci_stages" VALUES(7,2,'integration','failed','intermittent failure: test_checkout_idempotency (rerun may pass)');74INSERT INTO "ci_stages" VALUES(8,2,'regression','skipped','ok');75INSERT INTO "ci_stages" VALUES(9,3,'build','passed','ok');76INSERT INTO "ci_stages" VALUES(10,3,'unit','passed','ok');77INSERT INTO "ci_stages" VALUES(11,3,'integration','passed','ok');78INSERT INTO "ci_stages" VALUES(12,3,'regression','passed','ok');79INSERT INTO "ci_stages" VALUES(13,4,'build','passed','ok');80INSERT INTO "ci_stages" VALUES(14,4,'unit','passed','ok');81INSERT INTO "ci_stages" VALUES(15,4,'integration','passed','ok');82INSERT INTO "ci_stages" VALUES(16,4,'regression','passed','ok');83INSERT INTO "ci_stages" VALUES(17,5,'build','passed','ok');84INSERT INTO "ci_stages" VALUES(18,5,'unit','passed','ok');85INSERT INTO "ci_stages" VALUES(19,5,'integration','failed','intermittent failure: test_price_rounding (rerun may pass)');86INSERT INTO "ci_stages" VALUES(20,5,'regression','skipped','ok');87INSERT INTO "ci_stages" VALUES(21,6,'build','passed','ok');88INSERT INTO "ci_stages" VALUES(22,6,'unit','passed','ok');89INSERT INTO "ci_stages" VALUES(23,6,'integration','passed','ok');90INSERT INTO "ci_stages" VALUES(24,6,'regression','passed','ok');91INSERT INTO "ci_stages" VALUES(25,7,'build','passed','ok');92INSERT INTO "ci_stages" VALUES(26,7,'unit','passed','ok');93INSERT INTO "ci_stages" VALUES(27,7,'integration','passed','ok');94INSERT INTO "ci_stages" VALUES(28,7,'regression','passed','ok');95INSERT INTO "ci_stages" VALUES(29,8,'build','passed','ok');96INSERT INTO "ci_stages" VALUES(30,8,'unit','passed','ok');97INSERT INTO "ci_stages" VALUES(31,8,'integration','failed','intermittent failure: test_reservation_race (rerun may pass)');98INSERT INTO "ci_stages" VALUES(32,8,'regression','skipped','ok');99INSERT INTO "ci_stages" VALUES(33,9,'build','passed','ok');100INSERT INTO "ci_stages" VALUES(34,9,'unit','passed','ok');101INSERT INTO "ci_stages" VALUES(35,9,'integration','passed','ok');102INSERT INTO "ci_stages" VALUES(36,9,'regression','passed','ok');103INSERT INTO "ci_stages" VALUES(37,10,'build','passed','ok');104INSERT INTO "ci_stages" VALUES(38,10,'unit','passed','ok');105INSERT INTO "ci_stages" VALUES(39,10,'integration','failed','intermittent failure: test_index_refresh (rerun may pass)');106INSERT INTO "ci_stages" VALUES(40,10,'regression','skipped','ok');107INSERT INTO "ci_stages" VALUES(41,11,'build','passed','ok');108INSERT INTO "ci_stages" VALUES(42,11,'unit','passed','ok');109INSERT INTO "ci_stages" VALUES(43,11,'integration','passed','ok');110INSERT INTO "ci_stages" VALUES(44,11,'regression','passed','ok');111INSERT INTO "ci_stages" VALUES(45,12,'build','passed','ok');112INSERT INTO "ci_stages" VALUES(46,12,'unit','passed','ok');113INSERT INTO "ci_stages" VALUES(47,12,'integration','failed','intermittent failure: test_rollup_window (rerun may pass)');114INSERT INTO "ci_stages" VALUES(48,12,'regression','skipped','ok');115INSERT INTO "code_exercises" VALUES(9401,'payments','src/payments/backoff.py','next_delay_ms','Implement next_delay_ms(attempt, base_ms, max_ms).116 117Retries are numbered from 1: the delay before the FIRST retry is attempt=1.118The delay doubles with each attempt - base_ms for attempt 1, twice that for119attempt 2, four times for attempt 3 - and is capped at max_ms. The cap is a120ceiling on the returned value, not on the exponent.121 122attempt < 1 is not a retry and must raise ValueError.','"""Backoff schedule for the payments retry path."""123 124 125def next_delay_ms(attempt, base_ms, max_ms):126    """Delay before retry number `attempt`, capped at max_ms."""127    raise NotImplementedError128','[["the delay doubles", "assert next_delay_ms(3, 100, 10000) == 2 * next_delay_ms(2, 100, 10000)"], ["delays are positive", "assert next_delay_ms(2, 100, 10000) > 0"]]','[["attempt 1 is base_ms, not double", "assert next_delay_ms(1, 100, 10000) == 100"], ["the cap is a ceiling on the value", "assert next_delay_ms(9, 100, 5000) == 5000"], ["the cap applies at the boundary", "assert next_delay_ms(6, 100, 3200) == 3200"], ["attempt below 1 is not a retry", "try:\n    next_delay_ms(0, 100, 10000)\nexcept ValueError:\n    pass\nelse:\n    raise AssertionError(''attempt 0 must raise ValueError'')"]]');129INSERT INTO "code_exercises" VALUES(9402,'payments','src/payments/chunking.py','chunk','Implement chunk(items, size) returning a list of lists.130 131Settlement batches a day''s captures so one long-tailed merchant cannot stall132the run. Split `items` into consecutive groups of at most `size`, preserving133order. The final group may be shorter. An empty input produces no groups at134all - not one empty group. A size below 1 is meaningless and must raise135ValueError.136 137`items` is whatever captures.list_settlable() returned, which is any iterable138and is sometimes a one-pass generator, so do not assume it can be indexed or139measured with len().','"""Batch chunking for nightly settlement."""140 141 142def chunk(items, size):143    """Split items into consecutive groups of at most `size`."""144    raise NotImplementedError145','[["splits with a remainder", "assert chunk([1, 2, 3, 4, 5], 2) == [[1, 2], [3, 4], [5]]"]]','[["empty input produces no groups", "assert chunk([], 3) == []"], ["an exact multiple has no trailing empty group", "assert chunk([1, 2, 3, 4], 2) == [[1, 2], [3, 4]]"], ["order is preserved", "assert chunk([''a'', ''b'', ''c''], 1) == [[''a''], [''b''], [''c'']]"], ["a size below 1 is meaningless", "for bad in (0, -1):\n    try:\n        chunk([1, 2], bad)\n    except ValueError:\n        pass\n    else:\n        raise AssertionError(''size %r must raise ValueError'' % bad)"], ["an iterator is accepted, not just a list", "assert chunk(iter([1, 2, 3]), 2) == [[1, 2], [3]]"]]');146INSERT INTO "code_exercises" VALUES(9403,'search','src/search/cache_key.py','cache_key','Implement cache_key(params) returning a string.147 148The search result cache is keyed on the query parameters. Two calls with the149same parameters must produce the same key regardless of the order the keys150were inserted into the dict, because callers build them in different orders151and a mismatch silently halves the hit rate.152 153Different parameters must produce different keys. A parameter explicitly set154to None is not the same request as one that was never supplied. Values may be155strings, numbers, booleans or None.','"""Cache key derivation for the search result cache."""156 157 158def cache_key(params):159    """A stable key for a parameter dict."""160    raise NotImplementedError161','[["identical dicts agree", "assert cache_key({''q'': ''shoes'', ''page'': 1}) == cache_key({''q'': ''shoes'', ''page'': 1})"]]','[["insertion order does not matter", "a = {}\na[''q''] = ''shoes''\na[''page''] = 1\nb = {}\nb[''page''] = 1\nb[''q''] = ''shoes''\nassert cache_key(a) == cache_key(b)"], ["different values differ", "assert cache_key({''q'': ''shoes''}) != cache_key({''q'': ''boots''})"], ["an explicit None is not an absent key", "assert cache_key({''q'': ''shoes'', ''filter'': None}) != cache_key({''q'': ''shoes''})"], ["keys and values cannot run together", "assert cache_key({''a'': ''xb'', ''b'': ''''}) != cache_key({''a'': ''x'', ''bb'': ''''})"]]');162INSERT INTO "code_exercises" VALUES(9404,'api-gateway','src/gateway/token_bucket.py','TokenBucket','Implement class TokenBucket(capacity, refill_per_sec) with one method,163allow(now_ms), returning True if a request may proceed and False otherwise.164 165A bucket starts full. Each allowed request consumes exactly one token; a166refused request consumes none. Tokens refill continuously at refill_per_sec167and the bucket never holds more than capacity.168 169Refill is continuous, not stepwise: two calls 500ms apart at 1 token/sec must170together restore one whole token, so partial time must not be discarded. The171first call establishes the clock and refills nothing.172 173now_ms comes from a wall clock that is occasionally stepped backwards by NTP.174A backwards jump must never grant tokens and must never make the bucket175permanently unable to refill: treat time as not having advanced, and take the176new reading as the current clock.','"""Per-client rate limiting at the API gateway edge."""177 178 179class TokenBucket:180    def __init__(self, capacity, refill_per_sec):181        raise NotImplementedError182 183    def allow(self, now_ms):184        """True if a request may proceed, consuming one token."""185        raise NotImplementedError186','[["a full bucket allows up to capacity", "b = TokenBucket(2, 1)\nassert b.allow(0) and b.allow(0) and not b.allow(0)"], ["waiting restores a token", "b = TokenBucket(1, 1)\nassert b.allow(0)\nassert not b.allow(0)\nassert b.allow(1000)"]]','[["partial time is not discarded", "b = TokenBucket(1, 1)\nassert b.allow(0)\nassert not b.allow(500)\nassert b.allow(1000)"], ["the bucket never exceeds capacity", "b = TokenBucket(2, 100)\nassert b.allow(0) and b.allow(0)\nassert b.allow(10000) and b.allow(10000)\nassert not b.allow(10000)"], ["a backwards clock grants nothing", "b = TokenBucket(1, 1)\nassert b.allow(5000)\nassert not b.allow(1000)"], ["a backwards clock does not wedge the bucket", "b = TokenBucket(1, 1)\nassert b.allow(5000)\nassert not b.allow(1000)\nassert b.allow(2000)"], ["a refused request consumes nothing", "b = TokenBucket(1, 1)\nassert b.allow(0)\nfor _ in range(5):\n    assert not b.allow(0)\nassert b.allow(1000)"]]');187INSERT INTO "commits" VALUES(1,'3f8a1c2','api-gateway','Priya Nair',1,'api-gateway: initial edge skeleton with healthz and access log','internal/router/routes.go,internal/config/config.go',214,0);188INSERT INTO "commits" VALUES(2,'9d41b07','catalog','Sam Whitfield',2,'catalog: define Product and Money value objects','src/catalog/models.py',96,0);189INSERT INTO "commits" VALUES(3,'c72e5a9','checkout','Nina Kowalski',3,'checkout: bootstrap service package and settings module','src/checkout/config.py',74,0);190INSERT INTO "commits" VALUES(4,'18be6d4','payments','Diego Ramos',4,'payments: wire libpayproc client and capture happy path','src/payments/capture.py',131,0);191INSERT INTO "commits" VALUES(5,'a05f3e8','storefront-web','Mei Tanaka',5,'storefront-web: scaffold app router and base layout','src/app/checkout/page.tsx',88,0);192INSERT INTO "commits" VALUES(6,'6e2c94b','catalog','Sam Whitfield',6,'catalog: repository layer over the product table','src/catalog/repository.py',118,4);193INSERT INTO "commits" VALUES(7,'b3417fd','payments','Diego Ramos',8,'payments: config loader reads /etc/novacart/payments.json','src/payments/settings.py',92,6);194INSERT INTO "commits" VALUES(8,'5cd80a1','checkout','Lena Ortiz',9,'checkout: cart aggregate with integer-cent arithmetic','src/checkout/cart.py',143,2);195INSERT INTO "commits" VALUES(9,'e91d276','api-gateway','Tom Becker',10,'api-gateway: add /v1/catalog and /v1/search passthrough routes','internal/router/routes.go',22,3);196INSERT INTO "commits" VALUES(10,'2a7f4c6','search','Mei Tanaka',11,'search: first cut of the index client and query parser','src/search/query.py',156,0);197INSERT INTO "commits" VALUES(11,'d40e9b3','notifications','Alex Osei',12,'notifications: provider adapter for transactional email','src/notifications/sender.py',104,0);198INSERT INTO "commits" VALUES(12,'7bc153e','checkout','Nina Kowalski',13,'checkout: reserve-then-capture orchestration','src/checkout/orchestrator.py',127,8);199INSERT INTO "commits" VALUES(13,'f28a60d','payments','Diego Ramos',14,'payments: notify_client posts receipts after capture','src/payments/notify_client.py,src/payments/capture.py',88,5);200INSERT INTO "commits" VALUES(14,'31d7e4a','search','Jordan Blake',15,'search: weighted ranking blend with recency decay','src/search/ranking.py',121,0);201INSERT INTO "commits" VALUES(15,'8f06b95','storefront-web','Nina Kowalski',16,'storefront-web: product grid component','src/components/ProductGrid.tsx',97,0);202INSERT INTO "commits" VALUES(16,'c4e2170','notifications','Alex Osei',17,'notifications: strict Jinja rendering so blank receipts fail loudly','src/notifications/templates.py',86,12);203INSERT INTO "commits" VALUES(17,'0b5d8fa','api-gateway','Priya Nair',18,'api-gateway: token bucket rate limiter per client key','internal/middleware/ratelimit.go',134,0);204INSERT INTO "commits" VALUES(18,'a63f92c','catalog','Ravi Shah',19,'catalog: initial price table migration','db/migrations/0012_product_price_tier_index.sql',18,0);205INSERT INTO "commits" VALUES(19,'56ea3d1','payments','Lena Ortiz',21,'payments: nightly settlement job grouped by merchant','src/payments/settlement.py',148,0);206INSERT INTO "commits" VALUES(20,'d18c7b4','checkout','Mei Tanaka',22,'checkout: integration suite for idempotent submits','tests/test_idempotency.py',71,0);207INSERT INTO "commits" VALUES(21,'9a4b06e','search','Mei Tanaka',23,'search: incremental indexer consuming catalog change events','src/search/indexer.py',139,0);208INSERT INTO "commits" VALUES(22,'e7302fb','storefront-web','Jordan Blake',24,'storefront-web: typed fetch wrapper with retry on 5xx','src/lib/api-client.ts',112,0);209INSERT INTO "commits" VALUES(23,'2c9f581','payments','Diego Ramos',25,'payments: unit tests around capture and receipt failure','tests/test_capture_retries.py',64,0);210INSERT INTO "commits" VALUES(24,'bf5a3d7','catalog','Sam Whitfield',26,'catalog: pricing module resolving list vs sale price','src/catalog/pricing.py',93,0);211INSERT INTO "commits" VALUES(25,'47d0e2a','api-gateway','Tom Becker',27,'api-gateway: require bearer token on order routes','internal/router/routes.go',19,6);212INSERT INTO "commits" VALUES(26,'10b8c63','search','Jordan Blake',28,'search: ranking unit tests including tie-break 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It calls payments and inventory synchronously. Escalate via #commerce.',372,0);605INSERT INTO "confluence_pages" VALUES(8002,'ENG','Gateway runbook (legacy)','The Edge Team owns the gateway. Page the Edge Team rota for any 5xx spike. Restart procedure targets host gw-prod-03.',181,1);606INSERT INTO "confluence_pages" VALUES(8003,'ENG','Weekly reporting conventions','Engineering weekly reports run Monday to Sunday, ISO-8601 week numbering, in UTC. Note that the service-owner spreadsheet uses a Sunday start and will disagree by one day at the boundary.',401,0);607INSERT INTO "confluence_pages" VALUES(8004,'ENG','Incident severity ladder','P1 = customer-facing outage, P2 = degraded customer experience, P3 = internal only, P4 = cosmetic. Customer-facing status is recorded on the public status page, not on the incident.',395,0);608INSERT INTO "contract_rules" VALUES(9161,'api-gateway','/v1/orders','storefront-web','orders_api_version','v2','regression: storefront-web still calls the orders API via orders_api_version=v1 - migrate the consumer to v2 and deploy it before retiring /v1/orders');609INSERT INTO "contract_rules" VALUES(9162,'api-gateway','/v1/auth','storefront-web','auth_api_version','v2','regression: storefront-web still calls the auth API via auth_api_version=v1 - migrate the consumer to v2 and deploy it before retiring /v1/auth');610INSERT INTO "contract_rules" VALUES(9163,'api-gateway','/v1/checkout','storefront-web','checkout_api_version','v2','regression: storefront-web still calls the checkout API via checkout_api_version=v1 - migrate the consumer to v2 and deploy it before retiring /v1/checkout');611INSERT INTO "db_grants" VALUES(9901,'payments','pg-primary','payments_rw','active',390,'');612INSERT INTO "db_grants" VALUES(9902,'checkout','pg-primary','checkout_rw','active',390,'');613INSERT INTO "db_grants" VALUES(9903,'catalog','pg-replica','catalog_ro','active',390,'');614INSERT INTO "db_grants" VALUES(9904,'search','pg-replica','search_ro','active',390,'');615INSERT INTO "db_grants" VALUES(9905,'analytics-worker','pg-replica','analytics_ro','revoked',418,'role dropped during the day-418 credential rotation; the running pods were never restarted and still present the old role');616INSERT INTO "db_grants" VALUES(9906,'inventory','pg-replica','inventory_ro','missing',0,'no such role on pg-replica; the reporting job has never successfully connected since it was added');617INSERT INTO "db_grants" VALUES(9907,'notifications','rabbitmq','notify_pub','active',390,'');618INSERT INTO "db_grants" VALUES(9908,'analytics-worker','rabbitmq','analytics_sub','active',390,'');619INSERT INTO "deployments" VALUES(9251,'storefront-web','staging','v3.2.4','succeeded',100);620INSERT INTO "deployments" VALUES(9252,'storefront-web','production','v3.2.4','succeeded',100);621INSERT INTO "deployments" VALUES(9253,'api-gateway','staging','v5.0.9','succeeded',100);622INSERT INTO "deployments" VALUES(9254,'api-gateway','production','v5.0.9','succeeded',100);623INSERT INTO "deployments" VALUES(9255,'catalog','staging','v1.9.2','succeeded',100);624INSERT INTO "deployments" VALUES(9256,'catalog','production','v1.9.2','succeeded',100);625INSERT INTO "deployments" VALUES(9257,'checkout','staging','v2.6.3','succeeded',100);626INSERT INTO "deployments" VALUES(9258,'checkout','production','v2.6.3','succeeded',100);627INSERT INTO "deployments" VALUES(9259,'payments','staging','v2.7.0','succeeded',100);628INSERT INTO "deployments" VALUES(9260,'payments','production','v2.7.0','succeeded',100);629INSERT INTO "deployments" VALUES(9261,'notifications','staging','v1.4.8','succeeded',100);630INSERT INTO "deployments" VALUES(9262,'notifications','production','v1.4.8','succeeded',100);631INSERT INTO "deployments" VALUES(9263,'search','staging','v3.0.5','succeeded',100);632INSERT INTO "deployments" VALUES(9264,'search','production','v3.0.5','succeeded',100);633INSERT INTO "deployments" VALUES(9265,'api-gateway','staging','v5.1.0','succeeded',100);634INSERT INTO "deployments" VALUES(9266,'api-gateway','production','v5.1.0','succeeded',100);635INSERT INTO "deployments" VALUES(9267,'inventory','staging','v4.3.1','succeeded',100);636INSERT INTO "deployments" VALUES(9268,'inventory','production','v4.3.1','succeeded',100);637INSERT INTO "deployments" VALUES(9269,'media-service','staging','v0.9.4','succeeded',100);638INSERT INTO "deployments" VALUES(9270,'media-service','production','v0.9.4','succeeded',100);639INSERT INTO "deployments" VALUES(9271,'analytics-worker','staging','v2.1.7','succeeded',100);640INSERT INTO "deployments" VALUES(9272,'analytics-worker','production','v2.1.7','succeeded',100);641INSERT INTO "documents" VALUES(9601,'policy','Deployment policy','','Priya Nair',268,'# Deployment policy642 643This policy is binding for every NovaCart service. It is enforced partly by644tooling and partly by review; deviations are treated as incidents.645 646## Staging first, always647 648Every production deploy must first succeed on staging with the **same version**.649`deploy_service(service, environment="staging", version=V)` must be in a650`succeeded` state for version `V` before `deploy_service(service,651environment="production", version=V)` is accepted. Deploying a version to652production that has never been deployed to staging is rejected. There is no653"hotfix exception" - a hotfix is still a version, and it still goes to staging654first. In practice this costs about ninety seconds and it has caught eleven bad655releases in the last two quarters.656 657## Tier-1 services canary658 659Tier-1 services are the four that are directly in the money path or in front of660customers:661 662- `storefront-web`663- `api-gateway`664- `checkout`665- `payments`666 667For these, the production deploy must be a canary: call `deploy_service` with668`canary_percent <= 25`. Twenty-five percent is a ceiling, not a target; 10% is669the usual first step for anything touching payment capture. The canary must then670be assessed with `assess_canary` and may only be promoted with `promote_canary`671once the assessment reports healthy. Promoting a canary that `assess_canary`672reports as unhealthy is the single most common way engineers turn a small673regression into a SEV1 - see "Postmortem: api-gateway v5.1.0 latency surge"674in the incident archive.675 676Tier-2 services (`catalog`, `notifications`, `search`) deploy at 100% directly,677still staging-first.678 679## Rollback680 681`rollback_deployment` is **exempt** from the staging-first rule. During an682incident you roll back immediately; you do not stage a rollback. Rolling back683returns the service to the previously succeeded production version. See the684"Incident response" runbook for where rollback sits in the mitigation ordering,685and "Rollback and recovery" for the mechanics.686 687## Deployment score688 689Every deploy that trips an alarm counts against the owning team''s deployment690score, which is reviewed monthly. A tripped alarm on a canary that was correctly691assessed and *not* promoted is recorded but weighted at one quarter - the692canary did its job. This is deliberate: we would rather you canary and catch it693than skip the canary and get lucky.694 695## Related696 697- "Database migration policy" - migrations precede the code that needs them.698- "ADR-021: Standardize on staged canary deploys" - why we chose this shape.699- "Engineering onboarding: how we ship" - the end-to-end workflow.700');701INSERT INTO "documents" VALUES(9602,'policy','Database migration policy','','Diego Ramos',254,'# Database migration policy702 703Schema changes are the most common way a deploy goes sideways, because the code704and the schema move on different clocks. This policy makes the ordering705explicit.706 707## Migrations ship ahead of code708 709A schema change ships as a **migration**, applied to an environment with710`apply_migration(service, environment, migration_id)`. The migration must be711applied to an environment **before** the code version that depends on it is712deployed there.713 714The order for a schema-dependent release is therefore:715 7161. `apply_migration(service, "staging", M)`7172. `deploy_service(service, "staging", V)`7183. `apply_migration(service, "production", M)`7194. `deploy_service(service, "production", V)` - canary if tier-17205. `promote_canary(...)` after `assess_canary` reports healthy721 722Deploying a version whose migration has not been applied in that environment723**fails the deploy**. The deploy tool checks the declared migration dependency of724the version and refuses to start. This is a hard failure, not a warning, and it725counts as a failed deploy for the team''s deployment score.726 727## Forward-only728 729Migrations are **forward-only**. We do not write `down` steps and we do not730"unapply" a migration. If a migration is wrong, the fix is a *new* migration731that corrects it. The reasoning: a down-migration that drops a column is732indistinguishable from data loss when it runs against production, and the one733time we needed it under pressure it was untested. See "Postmortem: catalog734migration 0043 forced a rollback" for the incident that settled this argument.735 736Because migrations are forward-only, code rollback and schema rollback are737asymmetric: `rollback_deployment` moves the code back a version, but the schema738stays where it is. That is only safe if migrations are written to be739**backwards compatible with the previous code version** - the N-1 rule.740 741## The N-1 rule742 743Every migration must leave the database readable and writable by the currently744deployed code. Concretely:745 746- Adding a column: always safe, add it nullable or with a default.747- Renaming a column: never do it in one step. Add the new column, dual-write,748  backfill, switch reads, drop the old column in a later migration.749- Dropping a column or table: only after a release in which no deployed code750  references it.751- Adding a NOT NULL constraint: backfill first, constrain in a second migration.752 753## Review754 755Any migration that touches a table over ten million rows needs a second reviewer756from the owning team plus one from platform. `orders`, `payments_ledger`, and757`catalog_products` are all above that line.758');759INSERT INTO "documents" VALUES(9603,'runbook','Retry and timeout standard','','Priya Nair',241,'# Retry and timeout standard760 761Applies to every cross-service call in the NovaCart fleet. Two config keys per762downstream dependency, named after the downstream service.763 764## The two keys765 766For a caller talking to downstream service `X`:767 768- `<downstream>_retry_max_attempts` - **must be 3**769- `<downstream>_timeout_ms` - **must be at most 2000**770 771So `payments` calling `notifications` runs with772`notifications_retry_max_attempts=3` and `notifications_timeout_ms=2000` (or773lower). `checkout` calling `payments` runs with `payments_retry_max_attempts=3`774and `payment_timeout_ms` inside the 2000ms ceiling.775 776Retries use exponential backoff with jitter; the backoff schedule is applied777automatically by the shared HTTP client, so you do not configure delays. Three778attempts means one initial call plus two retries, worst case roughly779`3 * timeout_ms` plus backoff.780 781## Why 3 and why 2000782 783**A retry value of 0 means one timeout permanently fails the request.** There is784no second chance. A single blip in a downstream - a pod restart, a brief GC785pause, a rebalanced connection - becomes a user-visible failure and a failed786order. This is not hypothetical: payments ran with787`notifications_retry_max_attempts=0` and `notifications_timeout_ms=30000` for788several weeks and pushed `error_rate_pct` from a baseline of 0.4% to 3.8%,789straight through the 1.0% SLO.790 791The 2000ms ceiling exists because timeouts multiply up the call stack. A 30000ms792timeout on a leaf call does not "wait patiently" - it holds a request-handling793worker and a database connection for thirty seconds, and under load that is how794you exhaust a pool (see "Connection pool sizing"). If a downstream genuinely795cannot answer in two seconds, the call belongs on a queue, not in the request796path.797 798## Checklist for a new dependency799 8001. Add `<downstream>_retry_max_attempts=3` to the caller''s config.8012. Add `<downstream>_timeout_ms` at or below 2000.8023. Confirm the call is idempotent, or that the downstream deduplicates by803   idempotency key. Retrying a non-idempotent write is worse than failing.8044. Confirm the caller''s own inbound timeout is larger than805   `attempts * timeout_ms` plus backoff, or the retry budget is fiction.8065. Add the dependency to the service''s dependency section in its design doc.807 808## Anti-patterns809 810- Retrying on 4xx. Only retry timeouts, connection errors, 429, and 5xx.811- Retrying inside a retry. Nested retries multiply: 3 x 3 = 9 calls.812- Raising the timeout to "fix" a slow downstream. Fix the downstream.813');814INSERT INTO "documents" VALUES(9604,'runbook','Search caching','search','Mei Tanaka',233,'# Search caching815 816Owner: growth. Service: `search` (tier 2, python). SLO:817`latency_p99_ms < 300`.818 819## The rule820 821Production `search` **requires `cache_enabled=true`**. This is not a tuning822knob; it is a capacity assumption baked into how the index cluster is sized.823 824## Why825 826The query cache sits in front of the primary index and absorbs roughly **75% of827index load**. Search traffic is extremely head-heavy: the top few thousand828queries ("black jeans", "usb-c cable", "gift card") are a large majority of all829requests, and their result sets change only when the index is rebuilt. Serving830those from cache is close to free.831 832With `cache_enabled=false` every request goes to the primary index. Observed833effect in production: `latency_p99_ms` moves from a ~210ms baseline to ~640ms and834keeps climbing as concurrency rises, blowing through the 300ms SLO and firing a835`medium` alert. The service does not error - it just gets slow, which is why this836one is easy to miss until the alert fires. The tell in the logs is:837 838```839WARN query cache disabled (cache_enabled=false); every request is hitting the primary index840```841 842## Config keys843 844| Key             | Production value | Notes                                      |845| --------------- | ---------------- | ------------------------------------------ |846| `cache_enabled` | `true`           | Required. Never ship `false` to production. |847| `cache_ttl_s`   | `300`            | Standard TTL. Five minutes.                 |848| `index_shards`  | `4`              | Change only with a capacity review.         |849 850`cache_ttl_s=300` is the standard. It is a deliberate compromise: long enough851that the hit rate stays above 70%, short enough that a price or availability852change is visible within five minutes. Do not lower it below 60 - at that point853the stampede risk (below) outweighs the freshness gain. Do not raise it above854900 without merchandising sign-off, because stale out-of-stock results generate855support tickets.856 857## Cache stampede858 859A cold cache is dangerous, not merely slow. When many identical queries miss at860once they all reach the index simultaneously. We ship single-flight coalescing861plus a +/-10% TTL jitter for exactly this reason. If you flush the cache862manually, do it during low traffic and expect a latency spike. The full story is863in "Postmortem: search cache stampede after index rebuild".864 865## Changing cache config866 867`cache_enabled` and `cache_ttl_s` are repo config, not runtime flags. Changing868them means a PR with a `config` change, CI, merge, then a deploy - staging869first, per the "Deployment policy". `search` is tier 2, so production deploys go870straight to 100%.871 872## Verification873 874After deploying, confirm `latency_p99_ms` has returned to the ~210ms band before875resolving any related alert.876');877INSERT INTO "documents" VALUES(9605,'runbook','Catalog pricing performance','catalog','Diego Ramos',229,'# Catalog pricing performance878 879Owner: commerce. Service: `catalog` (tier 2, python). Consumed by `search`,880`checkout`, and `storefront-web` on every product listing render.881 882## The rule883 884`batch_pricing_enabled=true` is **required in production**.885 886## Why887 888`catalog` resolves a price per product from the pricing rules table, applying889the active promotion, the customer''s currency, and any tier discount. With890`batch_pricing_enabled=false`, the listing endpoint loops over the products in891the response and issues one pricing query per product. This is a textbook892**N+1 pattern**: a 48-item category page produces 1 listing query plus 48893pricing queries.894 895Measured cost: the per-product loop adds roughly **500ms at p99** on a standard896category page. It also multiplies database connection checkouts by the page897size, which is how a catalog slowdown turns into a `db_pool_size` exhaustion898event in a service that was nowhere near its own limits (see "Connection pool899sizing").900 901With `batch_pricing_enabled=true` the same page issues one listing query and one902batched pricing query with an `IN` clause over the product ids, then applies903promotions in memory. Same results, two round trips.904 905## Config keys906 907| Key                       | Production value | Notes                                  |908| ------------------------- | ---------------- | -------------------------------------- |909| `batch_pricing_enabled`   | `true`           | Required. The N+1 killer.              |910| `cdn_enabled`             | `true`           | See "CDN and media delivery".          |911 912## How to spot it913 914- p99 on `catalog` listing endpoints scales with page size rather than staying915  flat. If 24 items is 200ms and 96 items is 900ms, it is the loop.916- Database query counts per request in the hundreds.917- Log lines of the form `pricing lookup for product_id=... (batch disabled)`918  repeating with the same trace id.919 920## Fixing it921 922`batch_pricing_enabled` is repo config. Ship it as a PR with a `config` change,923run CI, merge, deploy to staging, then production. `catalog` is tier 2 so the924production deploy is a straight 100% deploy - no canary required, though a925canary is never wrong.926 927After the deploy, re-measure p99 on a large category page before closing the928ticket.929 930## Do not931 932- Do not "fix" this by raising `db_pool_size`. That hides the symptom and moves933  the failure to the database.934- Do not add a per-product cache in front of the loop. The batch query is935  cheaper than the cache lookups it would replace.936');937INSERT INTO "documents" VALUES(9606,'runbook','Incident response','','Priya Nair',271,'# Incident response938 939The one runbook everyone is expected to know cold. When an alert fires, follow940these steps **in order**. Do not skip ahead to root cause analysis - mitigate941first, understand later.942 943## The ordered steps944 9451. **Acknowledge the firing alert.** This tells everyone else the page has an946   owner. An unacknowledged alert is assumed unowned and will escalate.9472. **Mitigate.** Two levers, in order of preference:948   - `rollback_deployment` if the regression correlates with a deploy. Rollback949     is exempt from staging-first (see "Deployment policy").950   - Feature-flag kill switch: `set_feature_flag(..., enabled=false)` in the951     affected environment only. Flags are runtime toggles and need no deploy.952   Mitigation is not the fix. Do not spend twenty minutes writing a patch while953   customers are failing.9543. **Verify metric recovery.** Read the metric that fired. It must actually be955   back inside its SLO. "It looks better" is not verification.9564. **Resolve the alert.**9575. **Resolve the incident.**9586. **Post an update in `#incidents`.** What broke, what you did, current status.959   One paragraph is fine; silence is not.9607. **Publish a public status-page update** for any customer-visible incident.961   If a customer could have seen an error, a slow page, or a failed order, it is962   customer-visible. When in doubt, publish.9638. **For sev1, file a postmortem ticket** (type `postmortem`) naming the964   service and the version or flag involved. Sev1 postmortems are due within965   five working days.966 967## Severity968 969- **sev1** - money path broken or the whole site is down. `checkout`,970  `payments`, `api-gateway`, `storefront-web` hard-failing. Postmortem971  mandatory.972- **sev2** - significant degradation, workaround exists, revenue impact973  bounded. Postmortem optional but encouraged.974- **sev3** - internal or cosmetic, no customer impact.975 976## Choosing the mitigation977 978| Signal                                            | Mitigation           |979| ------------------------------------------------- | -------------------- |980| Regression starts exactly at a deploy timestamp    | `rollback_deployment` |981| Regression tracks a feature-flag rollout percent   | Flag kill switch     |982| Config value is obviously wrong in production      | Config PR + deploy   |983| Downstream dependency is the one that is unhealthy | Page that team too   |984 985If the deploy that caused it was a canary, do not promote it - roll the canary986back and leave production on the previous version.987 988## Things that go wrong989 990- Resolving the alert before verifying recovery. It re-fires in four minutes and991  now nobody trusts the alert.992- Kill-switching a flag in *both* environments when only production is broken.993  Leave staging enabled so you can reproduce.994- Forgetting the status-page update. Support finds out from customers.995 996## Related997 998- "Deployment policy", "Rollback and recovery", "On-call and alert triage".999');1000INSERT INTO "documents" VALUES(9607,'runbook','Feature flags','','Mei Tanaka',247,'# Feature flags1001 1002Every new user-facing feature ships **dark**: merged, deployed, and switched1003off, then turned on gradually.1004 1005## Defining a flag1006 1007A flag is defined by a `flag` change in the PR that introduces the guarded code.1008Flag and code land together, in one PR, so there is never a flag referencing1009code that does not exist or guarded code with no way to turn it off. At merge1010the flag is created **disabled in both environments** with a rollout of 0%.1011 1012Naming: lowercase snake_case, describing the feature, not the experiment -1013`express_checkout`, `instant_refunds`, `new_search_ui`. Not `mei_test_2` and not1014`enable_new_thing_v3_final`.1015 1016## Ordering: deploy the code, then enable the flag1017 1018**The guarded code must be deployed to production BEFORE the flag is enabled1019there.** Enabling a flag whose code is not deployed does one of two things:1020nothing at all (best case, and you waste an hour wondering why), or it activates1021a half-present code path across a partially deployed fleet (worst case).1022 1023So the sequence is:1024 10251. PR with the module change and the `flag` change - CI - merge.10262. Deploy to staging.10273. Deploy to production. Tier-1 services canary at `canary_percent <= 25`,1028   `assess_canary`, then `promote_canary` (see "Deployment policy").10294. Only now: `set_feature_flag(flag, environment="production", enabled=true,1030   rollout_percent=10)`.1031 1032## Initial rollout must not exceed 10%1033 1034The first production enablement is capped at **10%**. Sit there long enough to1035see real traffic - at minimum one full traffic peak - and watch the owning1036service''s error rate and p99. Then ramp: 10 - 25 - 50 - 100, checking metrics at1037each step.1038 1039Flags are **runtime toggles**: `set_feature_flag` takes effect immediately and1040needs **no deploy**. That cuts both ways - it is why a flag is the fastest kill1041switch we have, and it is why an unreviewed ramp to 100% is the fastest way to1042cause a sev2. The `instant_refunds` incident was exactly this: the flag went to1043100% in production and `checkout` `error_rate_pct` went from 0.3% to 5.5%.1044 1045## Kill switch1046 1047During an incident, disable the flag in the affected environment only. Leave the1048other environment as it is so you can still reproduce. See "Incident response".1049 1050## Cleanup1051 1052**Stale flags must be cleaned up after full rollout.** Once a flag has been at1053100% in production for two weeks and there is no plan to turn it off, remove the1054conditional from the code and delete the flag in a follow-up PR. Every flag left1055behind is a branch of untested code and a future outage. The owning team reviews1056its flag list at each sprint boundary.1057');1058INSERT INTO "documents" VALUES(9608,'runbook','API deprecation','api-gateway','Priya Nair',259,'# API deprecation1059 1060How to retire a public endpoint without breaking integrators. Traffic weights1061live in `api-gateway` production runtime state; endpoint status lives in the1062repo.1063 1064## The three phases1065 1066### 1. Deprecate and deploy1067 1068Mark the endpoint `deprecated` via an `endpoint` PR change, and **deploy that1069first**. Deprecation is a real code change: the gateway starts emitting1070`Deprecation` and `Sunset` response headers, the endpoint is flagged in the1071public API reference, and usage is tagged by client id so we can see who is1072still on it. `api-gateway` is tier 1, so this deploy is staging first, then a1073production canary at `canary_percent <= 25`, `assess_canary`, `promote_canary`.1074 1075Do not shift any traffic yet. Deprecated is a label, not a redirect.1076 1077### 2. Shift traffic in stages1078 1079Move traffic from the legacy endpoint to its replacement in steps of **at most108050 percentage points per step**. A typical path is 100 - 50 - 0 with a soak in1081between, and for a high-volume endpoint 100 - 75 - 50 - 25 - 0 is better.1082 1083At each step:1084 1085- Watch the replacement''s error rate and p99 for at least one traffic peak.1086- Compare response shapes on a sample of real requests.1087- If anything regresses, shift back. Shifting back is free and instant.1088 1089The two endpoints'' weights should sum to 100 at every step. A step larger than109050 points is rejected - it is the difference between a bad hour and a bad1091quarter.1092 1093### 3. Retire1094 1095**Only when the legacy endpoint serves 0% traffic may it be retired.** Retire it1096with a second `endpoint` PR change (status `retired`) and deploy that change,1097staging first, canary, promote.1098 1099**CI blocks retiring an endpoint that is still serving traffic.** The check1100reads the production traffic weight for the endpoint and fails the run if it is1101non-zero. This is not overridable; get the weight to 0 first.1102 1103## Communication1104 1105- Announce in `#eng` when the deprecation deploy lands.1106- Give external integrators a minimum 90-day sunset window from the date the1107  `Sunset` header first ships.1108- Update the public API spec in the same sprint - see "Public Orders API".1109 1110## Worked example1111 1112`/v1/orders` to `/v2/orders`: deprecate `/v1/orders` and deploy; shift1113`/v1/orders` 100 to 50 while `/v2/orders` goes 0 to 50; soak; shift to 0/100;1114soak; retire `/v1/orders` and deploy. Rationale in "ADR-031: Versioned public1115API (/v1 to /v2 orders)".1116');1117INSERT INTO "documents" VALUES(9609,'runbook','Security response','','Alex Osei',263,'# Security response1118 1119Covers dependency vulnerabilities reported by the scanner and secrets found in1120source. Security tickets carry the `security` type and are prioritized above1121feature work.1122 1123## Vulnerable dependency1124 1125Ordered steps:1126 11271. **Patch the vulnerable dependency.** Bump to the fixed version named in the1128   finding via a PR with a `dependency` change. Do not jump several major1129   versions to "get ahead" - patch to the fixed version, then plan the upgrade1130   separately.11312. **Deploy staging, then production.** Staging-first per the "Deployment1132   policy". Tier-1 services canary at `canary_percent <= 25`, `assess_canary`,1133   then `promote_canary`.11343. **Verify the scanner shows the finding remediated.** Re-run the scan against1135   the deployed service and confirm the vulnerability status is no longer1136   `open`. A merged PR is not remediation; a deployed and re-scanned service is.11374. **Post an audit summary to `#security` referencing the CVE id.** State the1138   CVE, the service, the old and new versions, and when production was patched.1139   Auditors read this channel; the CVE id must appear literally.11405. **Close the security ticket.**1141 1142Timelines by severity, measured from the finding appearing:1143 1144| Severity | Production patched within |1145| -------- | ------------------------- |1146| critical | 48 hours                  |1147| high     | 7 days                    |1148| medium   | 30 days                   |1149| low      | next maintenance window   |1150 1151## Secrets in code1152 1153If a credential, API key, or token is found in source, config, or CI logs:1154 11551. **Move it to the secret manager.** Set config key1156   `use_secret_manager=true` for the service and reference the secret by name;1157   the value never appears in the repo again.11582. **Rotate the credential.** Assume it is compromised the moment it was1159   committed - git history is forever and the repo is mirrored to CI. Rotation1160   is not optional even if the repo is private.11613. Deploy staging then production, verify the service still authenticates, and1162   post the summary to `#security`.1163 1164Do not "delete the line and force-push". The old blob is still reachable and the1165credential is still live.1166 1167## Escalation1168 1169Anything involving customer data exposure, an actively exploited vulnerability,1170or credential misuse in production is a sev1 - open an incident and follow1171"Incident response" in parallel with this runbook.1172 1173## Related1174 1175- "ADR-027: Move partner credentials to the secret manager".1176');1177INSERT INTO "documents" VALUES(9610,'runbook','Flaky tests','','Diego Ramos',244,'# Flaky tests1178 1179A flaky test is a test that passes and fails without the code changing. It is1180worse than a failing test, because it teaches the team to ignore red builds.1181 1182## Diagnose from CI history1183 1184Start with `list_ci_runs` for the service. You are looking for the same test1185name alternating between `passed` and `failed` across runs on the same commit or1186adjacent commits. The CI detail line usually names it:1187 1188```1189intermittent failure: test_checkout_idempotency (rerun may pass)1190```1191 1192Common root causes, roughly in order of how often we hit them:1193 11941. **Shared mutable fixture state** - two tests write the same row, key, or temp1195   file, and ordering decides who wins. The `test_checkout_idempotency` flake was1196   a nondeterministic idempotency-key collision in the fixture.11972. **Time and timezone** - `now()` at a boundary, tests that assume ordering by1198   second-resolution timestamps.11993. **Unseeded randomness** - random ids that occasionally collide.12004. **Real sleeps and races** - `sleep(0.1)` standing in for a synchronization

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